Return to player
94%
Minimum bet size
0.20
Slot category
Video Slots
Variance
Low
Reels
6
Progressive jackpot
No
Popularity rating
Maximum bet size
100
Game provider
Elk Studios
Bonus features
Yes
Paylines
Cluster Pays
Theme
Under the Sea
Oxygen 2 online slot game
Crisp artwork, upbeat music, coral creatures, and a generous collection of bonuses define Oxygen 2. The game takes players to the deep ridge of Coral Creek, where its inhabitants have machine-like features and continually evolve as their designs change. In this underwater setting, oxygen is exceptionally valuable, as are the prizes associated with putting these creatures to work. Oxygen 2 by ELK Studios is described as the provider’s latest journey into an energetic world of slot gameplay, with plenty for fans of the series to explore.
Oxygen 2 at a Glance: Key Facts About the Slot
- Oxygen 2 carries a stated maximum win cap of 25,000x.
- Bonus rounds are available.
- An X-iter bonus buy is included.
- Features include Blaster Wilds, Exploding Wilds, and Octopus Multipliers.
Oxygen 2 Slot Graphics and Sound
The original review finds that Oxygen 2’s audiovisual presentation is not a dramatic departure from the original Oxygen, which reflects the earlier game’s strong design standards. It describes a cleaner main grid with more vivid colour and a brighter overall appearance. Pipes, sand, coral, and water surround the grid, leaving it prominently positioned at the centre of the screen.
According to the review, the audio does not follow every familiar underwater-slot convention, although its melodies remain pleasant to hear. The beats add momentum, while the sound effects strengthen the connection to the marine setting. The way this mechanical sea life develops would even have surprised Darwin.
Top Casinos to Play Oxygen 2:
How to Play the Oxygen 2 Slot Machine
As with its prequel, Oxygen 2 uses a 6x7 grid whose individual positions can attach to reels and expand, creating opportunities for multipliers. Its Cluster Pays system does not require conventional symbol rows. Instead, clusters pay when five or more matching symbols land next to one another on the reels.
Oxygen 2 keeps its visual design focused on the underwater theme. Lower-value symbols appear as floating objects in bright pink, orange, and green shades, while the higher-value symbols depict threatening mechanical sea creatures, including piranhas and crabs.
A five-of-a-kind cluster can pay up to 1x the bet, whereas clusters containing 16+ symbols offer considerably more potential. With the right symbols, the listed payout can reach 100x the bet. The cheerful presentation therefore sits alongside the possibility of substantial wins, without making any outcome certain.
| Symbol | 16+ | 13–15 | 10–12 | 8–9 | 6–7 | 5 |
|---|---|---|---|---|---|---|
 | 100x | 10x | 5x | 2.5x | 1.5x | 1x |
 | 50x | 5x | 3x | 1.5x | 0.75x | 0.5x |
 | 30x | 4x | 2.5x | 1.2x | 0.6x | 0.4x |
 | 25x | 3.5x | 2x | 1x | 0.4x | 0.3x |
 | 20x | 3x | 1.5x | 0.8x | 0.25x | 0.2x |
 | 15x | 2.5x | 1.25x | 0.6x | 0.2x | 0.15x |
 | 10x | 2x | 1x | 0.5x | 0.15x | 0.1x |
Wild symbols substitute for all other paying symbols on the grid, and an all-wild win can pay as much as a comparable cluster made from the highest-paying symbol. During a symbol drop, the grid can sometimes produce 2x2, 3x3, or 4x4 symbols. These formations may appear anywhere and can carry extra multipliers that raise the value of a winning combination.
Oxygen 2 Slot Demo Version
Oxygen 2 is a brightly designed slot featuring multipliers and several bonus mechanics. The review recommends trying the demo before committing funds, particularly for players who want to understand the route towards the stated 25,000x maximum win. Free play lets you learn the layout and mechanics, test how features interact, and consider a staking approach without risking money. These observations may improve familiarity, but no strategy can ensure a win. Use the GCCans website to explore the demo before deciding whether to play for real money.
Oxygen 2 Slot Bonus Features
ELK Studios does not fill Oxygen 2 with ten plus separate bonus features, yet the review considers its selection substantial. Each mechanic is designed to add variety and create opportunities for stronger wins within the game’s rules. The bonus features listed for Oxygen 2 are as follows:
Avalanche Feature: After winning symbols pay, they burst and leave space for fresh symbols to fall into place. The special wild is the exception: it activates but remains on hold until it explodes later. The avalanche sequence continues until a symbol drop produces no further wins.
Oxygen Bubbles: Oxygen bubbles can activate at random and replace some symbols that have exploded. Each bubble begins with a multiplier of 1x, then doubles whenever another symbol explodes in the same position. The maximum multiplier for a bubble is 2,048x. Oxygen 2 also includes Multiplier Strike, which activates on random wins and adds a random number of multipliers to the reel.
The Jellyfish Multiplier: A jellyfish can appear from time to time carrying multipliers that it places randomly across the grid. When one multiplier replaces another, its value is added to the existing multiplier.
The Octopus Multiplier: During a spin, one random position is marked by a golden box, with an octopus positioned behind it. If that position forms part of a win, the octopus activates and adds a random number of multipliers to the winning cluster, provided those multipliers are already present elsewhere on the grid.
Blaster Wilds: When a Blaster Wild joins a winning cluster, it selects a random pay or wild symbol from the grid. It then replaces all pay symbols in an ‘X’ or ‘Plus’ pattern with the chosen symbol, potentially creating a larger win.
Exploding Wilds: When an Exploding Wild forms part of a winning cluster, it causes all pay symbols in two cone-shaped areas extending left, right, up, and down from the wild to explode.
Free Spins: The treasure chest acts as the scatter symbol, and landing at least three of them awards 10 free spins. Four scatters trigger the Super Bonus Game. Both games can be retriggered, while the Bonus Game can be upgraded to the Super Bonus game when four scatters land during the feature.
X-iter: X-iter is the Bonus Buy menu, giving players several ways to purchase bonus features and, according to the game information, guarantee certain triggers on the grid. Those options may affect the feature entry and payout potential, but they do not guarantee profit.
Winning Strategies for the Oxygen 2 Slot
Oxygen 2 places much of its action in the bonus symbols, so the review describes a relatively hands-off style of play. Even so, players can make considered choices when aiming for larger payouts. The following suggestions apply to this slot, although no betting system can guarantee profits:
- Compare online casinos carefully: The slot has an RTP of 94%, which the review does not regard as especially high. It therefore suggests looking for suitable bonus offers where available, something players may find at top online casinos. Offer terms should be read before accepting any promotion.
- Manage your bankroll carefully: This is described as a high volatility slot, so larger wins may take time to appear. Dividing your bankroll across several bets can help avoid using all your funds in the first few spins.
Oxygen 2 Technical Details
Oxygen 2 is a 6x7 slot with an RTP of 94% and high volatility. The minimum bet is 0.20 and the maximum bet is 100. The stated maximum win is 25,000x. Cluster Pays keeps the format straightforward, with winning combinations able to pay in every direction.
Best Alternatives to the Oxygen 2 Slot
After exploring Coral Creek, players can find plenty of other underwater-themed adventures. The review highlights these two alternatives for anyone looking for a similar ocean setting:
- Bigger Bass Splash: This well-known Pragmatic Play title offers an RTP of 96.5%, high volatility, and a maximum win of 5,000x. The review places Bigger Bass Splash among the stronger ocean-themed slot options.
- Muddy Waters: Muddy Waters takes the theme in another direction by sending players into polluted water, where discarded objects may conceal treasures. From Peter & Sons, this slot has an RTP of 96.49% and a maximum win of 20,000x.
Review Verdict
The review presents Oxygen 2 as an active slot whose pace is supported by a broad range of bonus features. Its potential wins add interest, although the review’s main criticism is that the game does not depart substantially from its predecessor in either presentation or bonus design. Choosing between the two may therefore produce a very similar experience. Even so, the Oxygen series brings a distinctive mechanical interpretation to the underwater setting and offers several features to explore.
With 12+ years of experience in the iGaming industry, Evan specializes in reviewing online casinos, analyzing slot games, and evaluating player safety. Their expertise covers casino licensing, RTP, volatility, bonus conditions, and withdrawal policies. Through hands-on testing and independent research, Evan delivers transparent, fact-based reviews to help players better understand gambling platforms, their features, and potential risks.
